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Calulate molality of 2.5 g of ethanoic acid in 75g of benzene

Answer» MOLECULAR wt of ethanoic acid = 46
 Molality = wt. of SOLUTE x 1000 / molecular wt.of solute x wt, of SOLVENT in GRAMS
     
              = 2.5 x 1000 / 46 x 75 = 0.72m


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